package com.itheima.reggie.controller;


import com.itheima.reggie.common.R;
import com.itheima.reggie.config.MinioConfig;
import com.itheima.reggie.utils.FileUploader;
import io.minio.GetPresignedObjectUrlArgs;
import io.minio.StatObjectResponse;
import io.minio.http.Method;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Slf4j
@RestController
@RequestMapping("/common")
public class CommonController {
    @Value("${reggie.path}")
    private String basePath;

    @Autowired
    private FileUploader fileUploader;

    @Autowired
    MinioConfig minioConfig;
    /*
     * 文件上传
     * */
    @PostMapping("/upload")
    public R<String> upload(MultipartFile file) {
        /*file是一个临时文件，需要给转存位置*/
        log.info(file.toString());

        String fileName = null;

        try {
           fileName = fileUploader.upload(file);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return R.success(fileName);
        /*//原始文件名
        String originalFilename = file.getOriginalFilename();
        String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));

        //使用UUID重新生成文件名
        String fileName = UUID.randomUUID().toString() + suffix;

        //创建一个目录对象
        File dir = new File(basePath);
        //判断当前目录是否存在
        if (!dir.exists()) {
            //目录不存在，需要创建
            dir.mkdirs();
        }

        try {
            //将临时文件转存到指定位置
            file.transferTo(new File(basePath + fileName));
        } catch (IOException e) {
            e.printStackTrace();
        }
        return R.success(fileName);*/
    }

    /*
     * 文件下载
     * */
    @GetMapping("/download")
    public void download(String name, HttpServletResponse response){
        log.info(name);
        /*try{
           //fileService.downloadByMinio(fileName,response);
            fileUploader.download(name,response);
        }catch (Exception e){
            log.error("下载文件失败", e);
        }*/


        fileUploader.download(name,response);
      //try {




            /*//输入流，通过输入流读取文件内容
            FileInputStream fileInputStream = new FileInputStream(new File(basePath + name));

            //输出流，通过输出流将文件写回浏览器
            ServletOutputStream outputStream = response.getOutputStream();

            int len = 0;
            byte[] bytes = new byte[1024];
            while ((len = fileInputStream.read(bytes)) != -1) {
                outputStream.write(bytes, 0, len);
                outputStream.flush();
            }

            IOUtils.copy(fileInputStream,outputStream);//将输入流中的数据，拷贝到输出流中

            //关闭资源
            outputStream.close();
            fileInputStream.close();*/
        //} catch (Exception e) {
           //e.printStackTrace();
       //}
    }
}
